div.dialog{
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  div.mask{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,.8);
    z-index: 50;
  }
  >div:nth-child(2){
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    width: 350px;
    height: 200px;
    background: #FFFFFF;
    border-radius: 10px;
    box-sizing: border-box;
    padding: 60px 45px 18px;
    z-index: 100;
    p{
      text-align: center;
      font-size: 20px;
      color: #333333;
    }
    >div{
      margin-top: 60px;
      div{
        width: 120px;
        height: 34px;
        box-sizing: border-box;
        border: 1px solid #57A1FE;
        border-radius: 2px;
        text-align: center;
        font-size: 16px;
        line-height: 34px;
        cursor: pointer;
      }
      div:nth-child(1){
        color: #57A1FE;
      }
      div:nth-child(2){
        color: #FFFFFF;
        background: #57A1FE;
      }
    }
  }
  i{
    display: block;
    font-size: 16px;
    color: #999;
    position: absolute;
    top: 10px;
    right: 10px;
    cursor: pointer;
  }
}